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"- Patented May-15, 1888,21

UNITED ST T PATE T I E FREDERICK L. HOTOHKIN'AND PIERRE A. BABY, or BROOKLYN, NEW YORK.

AUTOMATIC FIRE-EXTINGUISHER FOR STQVES AND HEATERS.

'SPECIPICATIONforming part of Letters Patent No. 382,812, dated May 15, 1888 Application filed February 26, 1887. Serial hlo. 228,965. (No model.)

To all whom it may concern:

Be it known that we, FREn RIoK L. Horos- KIN and PIERRE A. BABY, both of Brooklyn, in the county of Kings and State of New York, have invented a new and-Improved Automatic Fire-Extinguisher for Stoves and Heaters, of which the following is a full, clear, and exact description.

Our invention relates to an automatic fireextinguisher for use in connection with stoves or heaters, and especially applicable for use with car-heaters, and has for its object to provide a device which, in the event of a collision or overturning of a car, will automatically act and thereby prevent a confiagration.

to extinguish'any fire existing in the-heater,

The invention consists in the construction and combination of the several parts, as will be hereinafter fully set forth, and pointed out in the claims.

Reference is to be had to the accompanying drawings, forming a part of this specification,

in which similar letters of reference indicate corresponding parts in all the figures.

Figure l is a perspective view illustrating the application of our device, and Fig. 2'is a central vertical longitudinal section through the same. Fig. 3 is a detail perspective view of a bracket employed in the construction of the device. I

To carry the invention into effect, a cylindrical tubular body, A, is provided, having a bottom, a, and a thread ciit interiorly the upper end, the saidbody being preferablymade of brass, copper, or equivalent material. Centrally the bottom a, upon the inside, upwardly-inclined rods b are secured, preferably four in number, the said rods being inclined in opposite directions, as shown in Fig. 2, forming a seat for a weighty metal ball, B.

Aligningbrackets D D are secured to the body A upon oppositesides of the inner surface of said body near the top, one of which brackets, D, is provided with an open recessed top, and the other, having an up'wardly-im' clined inner face, being provided with a rectangular aperture in' the same horizontal plane with the recess of the opposing bracket D.

The brackets D D are adapted to receive a detachable split yoke, E, having one square end, e, a downwardlydnclined end, e, and a :lar'. recess in the inner face, the top being closed, and that the bracket D is provided with an open or apertured top, which aperture intercepts a rectangular recess aligning the aforesaid recess in the bracket D. When the yoke Eis placed in position, the inclined end of the said yoke is positedin the angular recess of the bracket D, and the square end is permitted to drop through the aperture in the bracket D. into the intercepting-recess therein, whereby a wedge-like bearing is secured.

A conical top, F, is made to screw into and form a cap for the body A, which cap is pro- Vided with an outlet, f, in one side near the top, over which outlet upon the outside a stout metallic tube, H, is soldered, riveted, or otherwise secured. The end of the tube H,which is adapted for insertion in a stove or heater above the fire-pot, is provided at its free end with an inclined surface having a hinged lid, h, the object of which lid is to prevent the heat passing up the tube. Between the pipe which enters the heater and that portion connected to the cap F a flexible connection, H, is preferably made, as shown.

In operation the body A is filled with a solution of carbonate of .potash or soda and the vessel M with sulphuric acid. The cap is then screwed on and the extinguisher placed upon a suitable bracket a convenient distance from and above the stove or heater, being held in position by a band, m, or other equivalent or appropriate means. The pipe H, connected with the conical cap, is thereupon carried 5' downwardthrough a'convenient portion of the stove or heater and held in engagement therewith above the fire-pot. In the event of a collision, or should the car be thrown upon its side, the ball B will leave its seat and'en- 100 gage the thin bottom of the receptacle M, breaking the same, and thereby mixing the two solutions. A carbonic acid gas is thereupon formed, which, finding a vent through the tube H, sprays over the heated fuel, extinguishing the fire.

By removing the yoke from the body Aand loosening the thumb-screws 6" another bottle of acid may be inserted. In replacing the yoke the square end e is entered the rectangular recess of the bracket D and the beveled end allowed to drop in the recess of the bracket D.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is-- 1. The combination, with the body A, provided with brackets D D near the top, the 0ppositely-inclined rods b at the bottom, and the conical cap F, provided with an outlet-tube, H, of an acid bottle suspended by a detachable split yoke, E, from said brackets D D, and a ball, B, loosely seated upon the said inclined rods b, substantially as shown and described, and for the purpose herein set forth.

2. The combination, with a stove or heater, of a fire-extinguisher consisting of a body, A, a split yoke, E, detachably held in said body near the top, an acid bottle suspended from the yoke, a series of oppositely-inclined rods, b, attached centrally to the bottom of the body, a metal ball supported by said rods beneath the bottle, a detachable conical cap, F, and outlet-tubes H, connecting the body with the interior of the stove, substantially as shown and described.

FREDERICK L. HOTGHKIN. PIERRE A. BABY.

Witnesses:

Ms. M. TYNER, Y THOS. H. WARD. 

